施工技术 2011年6月上 62 CONSTRUCTION TECHNOLOCY 第40卷第342期 焊接应力对开洞钢板剪力墙极限承载力的影响 兰涛1，郭彦林2，郝际平，赵思远2 (1.西安建筑科技大学土木工程学院，映西西安710055；2.清华大学土木水利学院，北京100084) [摘要]钢板剪力墙在施工过程中，为保证安装精度及避免受力后产生的噪声问题，多选用焊接连接的方式，这将 导致内填板存在较大的焊接应力与变形.通过建立精细有限元模型，研究了焊接对钢板墙受力性能的影响.计算 结果表明焊接应力与焊接变形在设计中不可忽略.首先，以开边洞钢板墙为例具体分析了施焊顺序的影响.在得 到最佳施焊方案后对有、无焊接作用下开边洞钢板墙进行比较发现，考虑焊接影响时钢板墙的极限挑剪承载力与 结构延性均有所降低.最后通过分析开边洞钢板墙的潜回曲线与能量耗散系数指出，钢板墙在进人弹塑性阶段后 具有较好的耗能能力. [关键词]精细有限元模型；焊接应力与变形；开边洞钢板剪力墙；焊接顺序；能量耗散系数 [中图分类号]TU391.9 [文献标识码]A [文章编号]1002-8498(2011)11-0062-04 Influence of Welding Stress on the Ultimate Bearing Capacity of Steel Plane Shearing Wall(SPSW)with Opening Lan Tao' Guo Yanlin2 Hao Jiping' Zhao Siyuan2 (1.Shool of Civil Engineering Xi'an University of Architeeture and Technology Xi'an Shaanxi 710055 China; 2.School of Cisil Engineering Tsinghua University Beijing 100084.China) Abstract:Welding is a mon method during the construction of steel plane shear wall(SPSW)to ensure fixing precision and avoid the noise after loading.Meanwhile welding leads to large stress and distortion in filling plates.The authors build exquisite finite element models to study the welding effects on the behavior of SPSW.It indicates that the welding stress and welding distortion can not be omitted in design.Firstly taking for SPSW with opening as example the influence of different welding sequences is analyzed and pared to obtain the optimum one.By paring SPSW with opening and that without it is found that the ultimate bearing capacity and ductil...
焊接应力对开洞钢板剪力墙极限承载力的影响.pdf
